Hot Water Recirculation

On-Demand Type System

Comfort Recirculation System

Can I have a hot water recirculation system and get hot water for all my faucets?

I want to install a hot water recirculation pump to deliver hot water faster to each of my faucets and shower locations.

Here are three types of the most common recirculation systems.

1) DEDICATED SYSTEM

The first type is the traditional dedicated hot water return system found in some homes; this system was first used in the early 70s. It consists of one or two dedicated return lines from the water heater to the farthest, most distant plumbing fixtures, such as a master bath and kitchen. This line is run back to the water heater. From there, a check valve is installed on the line with a pump leading into the water heater.

2) ON-DEMAND SYSTEM

A second type of recirculation system is used when no dedicated hot water return line is installed. This system uses your existing water piping and has no recirculation return line installed. Several types of new pumps are produced and used by plumbers. One type is called "On-Demand" (as shown). This type is located at the farthest plumbing fixtures from the water heater and consists of a pump installed under a sink; by pushing a demand button, hot water is quickly pulled from the water heater to this location.

3) COMFORT SYSTEM

A third type is called a "Comfort System" (as shown). This system has a pump installed at the water heater and uses a mechanical tee installed in a cabinet under a sink.

Whichever system is right for you, they all work reasonably well.

PEX PIPING SYSTEMS

But what if you have a home that has polyethylene (PEX) piping

installed, and it takes a long time to get hot water to the faucets

from the water heater.

Cross-linked polyethylene (PEX), a flexible plastic type,

replaces traditional copper and galvanized steel as water supply

lines in new construction and remodeling projects.

Homes using this type of piping system have drawbacks regarding

Hot water recirculation, usually installed in new home construction,

and using hot and cold water manifolds, traditionally located in a

garage or utility area. Unfortunately, these systems are installed

without a third manifold designated for the hot water return so that all

faucets in the home have instant hot water without the need to wait.

Some say it can't be done. Water Heater Pros Az says, yes, it can!

The good news is that a hot water recirculation system can be installed in such cases; expect limitations and extra out-of-pocket cost, but if you have a (PEX) piping system and want instant hot water at some or all the faucets, call us to schedule a quick installation 916-833-1533